Home / 870,949.40-1,201,879.33-488,992.28

Finding the Fourth Proportional to 870,949.40, 1,201,879.33 and 488,992.28

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Solution

The fourth proportional to 870,949.40, 1,201,879.33 and 488,992.28 is: 674,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,949.40 : 1,201,879.33 = 488,992.28 : x
  2. Step 2: Convert to fraction form
    870,949.40/1,201,879.33 = 488,992.28/x
  3. Step 3: Cross multiply
    870,949.40x = 1,201,879.33 × 488,992.28
  4. Step 4: Simplify right side
    870,949.40x = 587,709,713,861.57
  5. Step 5: Solve for x
    x = 587,709,713,861.57/870,949.40
  6. Step 6: Final answer
    x = 674,792.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.